Marilyn -
Our frame occupies a space about 94" x 174". That gives room to walk around one end of the frame, and also to access the handles from the front or back. There are pictures of our room on this thread:
Our quilting room . You just have to ignore the mess. Our sewing/storage/toy room will apparently never be as organized and neat as I would like.
One other thing I would recommend. However much light you think you need, double it! And use LED light because they give off a very white, pure light.
Edit to add: these pics were taken before we bought the 2 foot extension for the frame. It's in the same spot, but now is 12' long total and the refrigerator is moved closer to the door.